Method of sealing fiber shipping cases



Apr. 24, 1923.

H. R. BLISS METHOD OF SEALING FIBER SHIPPING CASES Filfged Sept. 19 1921 3 Sheets-Sheet l INVENTOR, fi757=6 1E3. 5 2219a. BY W W ATTORNEY.

Apr. 24, 1923. 1,452,588

- H. R. BLISS METHOD OF SEALING FIBER SHIPPING CASES Filed Sept; 19 1921 3 Sheets-Sheet 2 l 1 {:4 l3 0; 'u w 6 8 I i l l I l r 5 .l I l I I] I i' l :1: 7| '7 I I l W '3 1 I l 1 l g e i l l-! a I I &

.INVENTOR. Y J 722 x: 725233;.

A TTORNE Y.

Apr. 24, 19231 1,452,588

H. R. BLISS METHOD OF SEALING FIBER SHIPPING GASES Filed Sept. 19 1921 3 Sheets-Sheet 5 z a e VINVENTOR. I 1752 5672 75522 55.

ATTORNEY.

r 1:. Ear n. mass, on 1 ME'I'HQD OF SEALING FIBER SIPPING GASES.

Application filed September 19, 1921. ,Sei'ial No. 501,620.

To all whom it may concern:

Be it known that I, HERBERT R. BLiss, a citizen of the United States, residing at Niagara Falls, in the county of Niagara and State of New York, have invented certain new and useful Improvements in Methods of Sealing Fiber Shipping Cases, of which the following is a specification.

This invention relates to a method of sealing fiber shippin cases, and has for its ob- ]ect a method 0 sealing that permits the adoption of a fiber case of a minimum quantity of material. At the same time the seal-. ing is very secure, being alon two edges of the box and along the mid e. This is a considerable improvement over ordinary methods of sealing.

In the drawings,-

Fig. 1 is a perspective of a shipping case sealed by this method.

Fig. 2 is a perspective of a preferred form of sealing case before the same is sealed.

Fig. 3 is a plan view showing one specific method of sealing. (The order in which the stitches are driven is indicated by the-numerals).

' Fig. 4: is a. plan view in a like manner showing the order in which the stitches are driven into a shipping case with only a sin gle flap ateach end.

Fig. 5 is a plan view of a case showing an alternative method of sealing.

-Fig. 6 is a fr 'mentary section taken on the line 6-6 of ig. 3. FFig. 7 is a section on the line 7-7 of ig. 8 is a section taken on the 1ine8-8 of Fig. 3.

Fig. 9 is a section taken on the line 9-9 of Fig. 3.

Fig. 10 is a section taken on the line 10-10 of Fig. 4.

Fig. 11 is a section taken on the line 11-11 of Fig. 4.

Fig. 12 is a section taken on the line 12-12 of Fig. 4.

Fig. 13 is a section on the line 13-13 of Fig: 4.

F ig. 14 is a section on theline 14-14 of Fig. 15 is a section on the line 15-15 of g 16 is a section on the line 16-16 of Fig.

Fig. 17 is a section on the line 17-17 of his application is a continuation in part of application filed September 7th, 1920, No. 408,638, which has matured into Patent 1,414,067 dated April 25, 1922.

Heretofore it has been customary to use what is known as the slotted fiber shipping case. This is a ship-ping case in which the blank is made of a single piece. Each of the side walls of the blank havin relatively wide flaps, when these flaps are olded over they form the bottom and top of the case These overlapped flaps have been either stitched together or else glued together with a suitable paste or glue. Sometimes they are secured together by a pasting strip. This type of box utilizes a great amount of material as the flaps attached to the end walls are the same length as the flaps attached to the side walls.

It is the object of the present invention to provide a method of sealing which permits the use of a shipping case which has very short flaps attached to the end walls, which results in a considerable saving in the material from which. these boxes are constructed, anywhere from 15 to 20%, depending upon the shape and dimensions of the case. My method of sealing the flaps can be used with a box made from a single blank the same way that the old slotted container is made, but obviously there will be a great waste of material, in fact, just as great as with the old slotted container, for the shallow flaps on the end walls although taking less material would involve a great waste this way that would make the material cost of the container precisely that of the old slotted container. By using separate end walls that are stitched on in the manner shown in Figs. 1 and 2,

this waste is avoided, the two long flaps on the bottom of the regular slotted container are eliminated, and at the same time a stronger case is secured because the edges at the ends of the case-are all reinforced by a double thickness.

Now referring to Fig. 3, the method by which this case is stitched can be followed. The stitches are taken in the order indicated by the numerals. The flap at one end is a double flapa and so designated in Fi 2. The first thing to do is to place the lo ade anvil under the double flap as shown in Fi. 6, driving the stitches 1, 2, 3 and 4.

B nipulated about the anvil.

speak of placing the anvil under the double flap. Of course, it will be understood in actual practice that the anvil is fixed on a wire stitching machine and the case is ma- However, the process could conceivably be achieved by hand by inserting an anvil and manipulating it in various ways to be described.

After the stitches 1, 2, 3 and 4 have been re clinched by the anvil under the double flap, the position of the case with respect to the anvil is reversed,'the anvil being under the overlapping side wall flaps as shown in the dotted lines in Fig. 3 and as shown by the section illustrated in Fig. 7. WVith the parts thus positioned the case is pushed along the anvil and the stitches 5, 6, 7 8, 9 and 10 are taken. Then the case is shifted to one side and the stitches l1 and 12 are taken, and the case is shifted to the other side and the stitches 13 and 14 taken. Then the case is pulled entirely off the anvil and the anvil is inserted'between the folds of the double flap a, as is shown in Fig. '8, and the stitch 15 is taken. This makes a very secure fastening for every joint where the flaps meet as the parts are securely stitched together.

The second method illustrated in Fig. 4 is precisely the same as that already described except that instead of a double flap at one end a single flap a is used, as is shown in Fig. 10, also Fig. 13. This eliminates the double flap and results in a small saving in material, but it does not result in quite as good a closure (compare Figs. 9 and 13). In Fig. 9 there is no chance to get into the case at all, whereas in Fig. 13 the two side wall flaps are sealed together by the stitch 15 but they are not sealed to the end wall flap a between the stitches 1 and 3.

In the third specific method illustrated in Fig. 5 and the sections shown in Figs. 14 to 17 inclusive, the stitching is first done along the line where the wide flaps meet, then the Wide flaps are stitched to the narrow flap at one end and thereafter the stitches 11 to 15 inclusive are taken by running the anvil between the flaps of the double flap clear across from one side to the other.

It will be understood that my process can be used for fiber shipping cases, corrugated board, or any of the equivalent materials that are used. It will also be apparent that rivets can be used in place of wire stitches and that in fact thread stitches or other positive fastening means can be used in place of the wire stitches. I make these state- 'ments simply to show that my invention is not limited to the specific construction shown '60 although in the claims in order to make the a reference definite and unambiguous it may be necessary to refer to some of the elements in more or less specific language.

It will also be noted that aside from 85 convenience it does not make any particular difference in what order the stitches 5 to 12 in Figs. 3 and 4 are taken. The generic idea is that a sort of T arrangement of stitches is taken on one end and down the line of meeting of the overlapping flaps. In the methods shown in Figs. 3 and 4 the flaps at the end of the case'opposite the bar of the T have been stitched securely together before the T stitching is completed and in the actual preferred form before the T stitching is commenced. With such a double form of flap as is shown in Fig. 2 an alternative successful method such as shown in Fig. 5 can be practiced, namely, the anvil may be inserted between the flaps on the double flap (1 and the stitches in the end of the case opposite the bar of the T taken after the T stitching has been completed.

'Ihis method is essentially one in which an anvil or clinching member performs an essential part. It is the manipulating of this anvil and leaving the proper place for it to be inserted and withdrawn that ordains the order of the steps. The flaps could be pasted together but with flaps as shallow as these this would be a wholly impractical thing from the standpoint of commercial usage.

What I claim is:

1. The method of sealing a shipping case having flaps on the side and end walls, which consists of turning in one pair of opposed flaps, overlapping the other pair of opposed flaps over the first-mentioned flaps and each other, and taking a T arrangement of stitches with the stem of the T along the line of overlap of the overlying flaps and the bar of the T at one end of the case where the overlying flaps overlap the underlying flap, the opposite end of the case having the overlying flaps stitched to the underlying flap along the end of the case, whereby the entire stitching forms an H.

2. The method of sealing a shipping case having flaps attached to the side and end walls, which consists in turning inthe flaps oftwo opposed walls and turning in and overlapping the flaps of the other two opposed walls to overlie the first-mentioned flaps, the insertion of a blade anvil over one underlying flap at one end and under the overlapping flaps and under the underlying flap at the other end. and the taking of a T arrangement of stitches with the aid of said anvil to secure the overlapping flaps to the underlying flap at one end and to each other along the overlapping zone, the opposite end of the case being sealed by stitching the overlapping flaps to the underlying flap.

3. The method of sealing a shipping case with flaps on the side and end walls, which 12- consists in turning in a pair of opposed flaps and then overlapping the two other opposed flaps to overlie the first-mentioned flaps, the stitching of the overlapping flaps to the underlymg flap at one end but leaving an open- 13c ing between the overlapping flaps and the said underlying flap at the center, then the stitching of the overlapped flaps to each other along their line of overlap and to the underlying flap at the opposite end of the case by means of an anvil inserted between the opening left between the overlying flaps andthe [first-mentioned underlying flap.

4:. The method of sealing a shipping case having pairs of opposed flaps on its side and end walls, which consists in turning in two opposed flaps and then turning in and overlapping the other two opposed flaps to overliethe. first-mentioned flaps, the insertion of an anvil between the overlapping flaps and one underlying flap and locating the clinch- .'ing portion under the other underlying flap overlapping of stitches 'or clinching fasten ace. 5. The method of sealing a shipping case having a narrow pair of flaps on the end walls of the shipping case and a wide pair of flaps on the side walls of the shipping case, which consists inturningin the ,narrow pair of. flaps and then overlapping the wide pair-of flaps and causing the same to overlie the narrow flaps, taking a T 6plan ers alon the line of the overlapping flaps andalong one flaps and along one end the overlapping flaps and the end of the box with the overlapping flaps overlying the narrow flapat that end by using ablade anvil with its clinching por-' tion underlying the parts to be clinched, the

opposite end of the case being secured together by driving metallic fasteners through. underlying narrow flap and clinching the same.

6. The method of sealing a shipping case having opposed-flaps on theside and end walls of the case, one of said flaps being a double or turned-back flap, which conslstsin taking a T arrangement of stitches with a blade anvil to clinch the same along 'theiline of the overlapof-the overlapping of the box where the overlapping flaps overlap: .the underlying flap, the overlap-ping flaps having been secured to the other underlying flap at the opposite end of such underlying flap; and finishing the sealing operation by placing the anvil between the two portions ofthe double flap and driving and clinching the stitch through the overlapping flaps and one of the portions of the double flap.

7 The method-of sealing a'shipping case having side and end walls with opposed flaps, one of which is a double flap, which consists in turning in the pair of flaps including the double flap and doubling back the outer portion of such double flap, and then turning in and overlapping the other pair of flaps over each other and the first pair of flaps, then inserting a blade anvil under the inner portion of the doubleflap and driving stitches or fasteners-into the' overlying pair of flaps and the ends of su ch underlying flap, leaving a space at the center then inserting an anvil through such selected space and driving stitches into the overlying flaps to fasten them together and to the underlying flap at the opposite end, then withdrawing the anvil and inserting it at the center in between the outside and inside portions of the double flap and driving a stitch through the overlapped flaps and the outer portion of the double flap.

8. The method of sealing a shipping case having opposed flaps on the side and end walls, one of which flaps is a double flap. which consists in turning in the pair of flaps which includes the double flap and turning back the outer portion of such dou ble flap; the turning in of the other flaps to overlap each other and overlie the first-mentioned pair of flaps, the insertion of a blade anvil under'the overlapping flaps and over the single underlying flap and causing the clinching portion of such blade anvil to underlie the inner portion of the double underlying flap, andthe stitching of the overlapping flaps to th double underlying flap, then the withdrawal and insertion of the anvil at the opposite end of the case over the two portions of the double underlying flap and under the overlapped fiaps, and the stitching along the overlapped flaps at their line of overlap and also the taking ofstitches with the clinching portion of the anvil under the single underlying flap to fasten the overlying flaps to the same along this end of the case. and finally the withdrawal of the anvil and the insertion of the anvil 'at the-center of the case between the two portions of the double flap, and the taking of a stitch through the overlapped flaps and the outer portion of the double flap. i

In testimony whereof I alfix my signature.

' HERBERT R. BLISS.

e underlying double flap but leaving a free space at the center of such- 

